Pinned topiccl_deactivate_vgs: Failed varyoff when issuing a RG_MOVE

I get the error : cl_deactivate_vgs: Failed varyoff of DATAVG when issuing a RG_MOVE. The VG PERMISSION is read/write on both nodes and filesystem remain mounted !!

I have a cluster of 2 tests partitions between 2 Power520 under AIX 5.3 TL12 SP3 and PowerHA 5.5 SP7. I am using a single VIOS per server (ver 2.1.3). I created a test ressource group with one VG DATAVG (Enhanced Concurrent Mode) with 2 hdisks and one stripped filesystems /data. I have a HBVG (Enhanced Concurrent). I changed reserve_policy = no_reserve for all hdisks on the 2 VIOS and 2 partitions.